Add ProcessResult #366
Add ProcessResult #366
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WalkthroughThe recent updates across multiple files in the Changes
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The new implementation avoids unwrapping the result of try_into.
This commit changes the return type of Subshell::start_and_wait from (Result<(Pid, ProcessState), Errno>) to (Result<(Pid, ProcessResult), Errno). The new type is more precise since the return value cannot be ProcessState::Running. This change removes the falsely fallible conversion from ProcessState to ExitStatus in the calling functions.
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Actionable comments posted: 3
Outside diff range and nitpick comments (2)
yash-builtin/src/bg.rs (1)
[!TIP]
Codebase VerificationThe search results show that the old uppercase variants of
ProcessStateare still present inyash-env/src/lib.rs, specifically within commented-out TODO assertions. This indicates that the transition to lowercase variants is not fully complete.
yash-env/src/lib.rs: // TODO assert_eq!(env.jobs[job_1].state, ProcessState::Exited(ExitStatus(12)));yash-env/src/lib.rs: // TODO assert_eq!(env.jobs[job_2].state, ProcessState::Exited(ExitStatus(35)));These lines should be updated to use the new lowercase variants to maintain consistency across the codebase.
Analysis chain
Line range hint
262-285: The transition to lowercase variants ofProcessStateinbg.rsis correctly implemented.
The search results indicate that there are still occurrences of the old uppercase variants of
ProcessStatein the codebase, specifically inyash-env/src/lib.rs. This suggests that the transition to lowercase variants is incomplete.Scripts Executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Verify that lowercase variants of `ProcessState` are used consistently across the codebase. # Test: Search for the old uppercase variants. Expect: No occurrences. rg --type rust $'ProcessState::Exited|ProcessState::Stopped|ProcessState::Signaled'Length of output: 302
Script:
#!/bin/bash # Description: Locate the exact lines and files where the old uppercase variants of `ProcessState` are used. # Search for the old uppercase variants and display the lines with context. rg --type rust 'ProcessState::Exited|ProcessState::Stopped|ProcessState::Signaled' -C 3Length of output: 581
yash-env/src/system/virtual.rs (1)
2427-2427: Correctly document the behavior ofwaitfunction.The comment for the
waitfunction should clearly state that it waits for a child process to change state and returns the new state if it has changed. This is important for clarity and maintainability of the code.
Review Details
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Review profile: CHILL
Files selected for processing (17)
- yash-builtin/src/bg.rs (11 hunks)
- yash-builtin/src/fg.rs (14 hunks)
- yash-builtin/src/jobs.rs (16 hunks)
- yash-builtin/src/kill/send.rs (2 hunks)
- yash-builtin/src/wait/core.rs (2 hunks)
- yash-builtin/src/wait/status.rs (12 hunks)
- yash-env/CHANGELOG.md (2 hunks)
- yash-env/src/job.rs (25 hunks)
- yash-env/src/job/fmt.rs (5 hunks)
- yash-env/src/lib.rs (4 hunks)
- yash-env/src/subshell.rs (11 hunks)
- yash-env/src/system/virtual.rs (12 hunks)
- yash-env/src/system/virtual/process.rs (11 hunks)
- yash-semantics/src/command/compound_command/subshell.rs (4 hunks)
- yash-semantics/src/command/pipeline.rs (6 hunks)
- yash-semantics/src/command/simple_command/absent.rs (2 hunks)
- yash-semantics/src/command/simple_command/external.rs (2 hunks)
Files skipped from review due to trivial changes (1)
- yash-builtin/src/wait/core.rs
Additional Context Used
LanguageTool (1)
yash-env/CHANGELOG.md (1)
Near line 28: Unpaired symbol: ‘'’ seems to be missing
Context: ...straint forsubshell::Subshellis now `F: for<'a> FnOnce(&'a mut Env, Option<JobControl...
Learnings (1)
yash-builtin/src/wait/status.rs (1)
User: magicant PR: magicant/yash-rs#343 File: yash-env/src/job.rs:46-46 Timestamp: 2024-01-20T04:59:37.572Z Learning: The user has clarified that the `WaitStatus` import from the `nix` crate, although not marked as `public`, is used privately within the codebase for conversion between `WaitStatus` and `ProcessState`.
Additional comments not posted (49)
yash-env/CHANGELOG.md (2)
16-20: The additions to the changelog accurately reflect the new features and modifications made toProcessResultandProcessState. These entries are crucial for users to understand the changes in the new version.
35-36: The removals in the changelog correctly document the deprecated elements ofProcessState, which have been replaced byProcessResult. This helps in maintaining clarity about the evolution of the codebase.yash-builtin/src/kill/send.rs (1)
199-199: The update to useProcessState::exited(0)in theresolve_targetfunction aligns with the new enum definitions inProcessState. This change ensures consistency with the new state handling logic.yash-semantics/src/command/simple_command/absent.rs (1)
71-83: The modifications in theexecute_absent_targetfunction to handleProcessResultinstead ofProcessStateare correctly implemented. The use ofresult.is_stopped()andresult.into()ensures that the new enum is utilized effectively for process state checks and conversions.yash-semantics/src/command/compound_command/subshell.rs (1)
40-49: The updates in theexecutefunction to handleProcessResultinstead ofProcessStateare correctly implemented. The use ofresult.is_stopped()andresult.into()ensures that the new enum is utilized effectively for process state checks and conversions.yash-builtin/src/wait/status.rs (1)
81-91: The modifications in thejob_statusfunction to handleProcessResultandProcessStateare correctly implemented. The use of pattern matching onProcessState::Halted(result)and handling different results based onProcessResultvariants ensures that the new enums are utilized effectively.yash-env/src/job/fmt.rs (1)
80-111: The implementation of theDisplaytrait forProcessResultandProcessStateis correctly updated to handle the new enum variants. The detailed formatting rules for different states and results are well-defined, ensuring clear and consistent output.yash-semantics/src/command/simple_command/external.rs (1)
113-122: The integration ofProcessResultinstart_external_utility_in_subshell_and_waitis correctly implemented.Verification successful
The integration of
ProcessResultinstart_external_utility_in_subshell_and_waitappears to be correctly implemented in bothyash-semantics/src/command/simple_command/external.rsandyash-builtin/src/command/invoke.rs. The function calls handle the result appropriately by assigning it toenv.exit_statusor using it to create acrate::Result.
yash-semantics/src/command/simple_command/external.rs: The result ofstart_external_utility_in_subshell_and_waitis assigned toenv.exit_status.yash-builtin/src/command/invoke.rs: The result is used to create acrate::Result.No issues were found with the usage of
start_external_utility_in_subshell_and_wait.Scripts Executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Verify that `start_external_utility_in_subshell_and_wait` is used correctly across the codebase. # Test: Search for the function usage. Expect: Correct handling of `ProcessResult`. rg --type rust $'start_external_utility_in_subshell_and_wait'Length of output: 691
Script:
#!/bin/bash # Extract the relevant code snippets from the identified files to review the usage of `start_external_utility_in_subshell_and_wait`. # Extract from yash-semantics/src/command/simple_command/external.rs rg --type rust -A 10 -B 10 $'start_external_utility_in_subshell_and_wait' yash-semantics/src/command/simple_command/external.rs # Extract from yash-builtin/src/command/invoke.rs rg --type rust -A 10 -B 10 $'start_external_utility_in_subshell_and_wait' yash-builtin/src/command/invoke.rsLength of output: 2890
yash-builtin/src/fg.rs (3)
104-109: Ensure correct handling ofProcessState::Haltedinwait_until_halt.The function now correctly handles the
Haltedstate by returning immediately, which aligns with the expected behavior of stopping the wait when a job halts.
206-206: Update test cases to reflect changes inProcessStateandProcessResult.The test cases have been updated to use
ProcessResultinstead ofProcessStatewhere appropriate, ensuring that the tests reflect the new logic and behavior accurately.Also applies to: 239-239, 240-240, 243-243, 259-259, 260-260, 263-263, 285-285, 286-286, 289-289, 294-294, 296-296, 315-315, 316-316, 319-319, 324-324, 326-326, 328-328, 339-339, 340-340, 343-343, 361-361, 365-365, 373-373, 381-381, 423-423, 424-424, 427-427, 432-432, 433-433, 436-436, 447-447, 472-472, 473-473, 476-476, 487-487, 488-488, 491-491, 502-502
147-147: Verify correct behavior afterwait_until_haltinresume_job_by_index.yash-builtin/src/jobs.rs (1)
236-236: Ensure consistency inProcessStateandProcessResultusage across job control functions.The changes correctly reflect the new
ProcessStateandProcessResultenums, ensuring that the job control functions handle job states consistently and accurately.Also applies to: 263-263, 286-286, 296-296, 301-304, 309-312, 336-336, 363-363, 369-369, 391-391, 436-436, 461-461, 472-472, 483-483, 520-520, 547-547, 568-568, 587-587, 607-607
yash-semantics/src/command/pipeline.rs (5)
145-154: Ensure correct handling ofProcessResultin job control logic.The conversion of
ProcessResulttoProcessStateand the subsequent job handling appear to be correctly implemented. The job's state is updated based on the result, and the job is added to the job list if it is stopped, which aligns with typical job control behavior.
341-341: Import ofProcessResultandProcessStateis correctly updated.The import statements are correctly adjusted to reflect the new
ProcessResultusage, ensuring that the file remains consistent with the changes made across the project.
408-411: Correctly handleProcessState::Haltedin test assertions.The test correctly checks for the
ProcessState::Haltedwith aProcessResult::Exitedinside it, which is a good use of pattern matching to ensure that the process state is as expected.
439-439: Ensure correct state handling for unrelated child processes.The test correctly asserts that unrelated child processes are not affected by operations within a pipeline, which is crucial for ensuring that the shell's job control behaves as expected.
154-154: Verify the conversion fromProcessResulttoExitStatus.Verification successful
The conversion from
ProcessResulttoExitStatusis implemented using theFromtrait, as found inyash-env/src/job.rs.
yash-env/src/job.rs:impl From<ProcessResult> for ExitStatusScripts Executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Verify that the conversion from `ProcessResult` to `ExitStatus` is correctly implemented across the codebase. # Test: Search for the conversion usage. Expect: Correct implementation and usage. rg --type rust $'result.into()'Length of output: 1681
Script:
#!/bin/bash # Description: Locate the implementation of the `Into` trait for `ProcessResult` to `ExitStatus` conversion. # Test: Search for the `Into` trait implementation. Expect: Correct implementation and usage. rg --type rust 'impl Into<ExitStatus> for ProcessResult'Length of output: 58
Script:
#!/bin/bash # Description: Locate the implementation of the `From` trait or other conversion methods for `ProcessResult` to `ExitStatus`. # Test: Search for the `From` trait implementation. Expect: Correct implementation and usage. rg --type rust 'impl From<ProcessResult> for ExitStatus'Length of output: 120
yash-env/src/lib.rs (2)
363-366: Ensure correct conversion fromProcessStatetoExitStatus.The method
wait_for_subshell_to_finishcorrectly handles the conversion fromProcessStatetoExitStatus, ensuring that only non-alive states are converted, which aligns with the expected behavior of this method.
607-607: Verify correct behavior ofwait_for_subshellwith job list updates.The tests correctly simulate the behavior of starting a subshell and waiting for it, then checking that the
ProcessStateis as expected and that the job list is correctly updated. This ensures that the job control logic is robust and behaves as expected.Also applies to: 622-623
yash-env/src/subshell.rs (7)
30-30: Ensure that the new importProcessResultis utilized effectively in the file.
238-238: The methodstart_and_waithas been updated to returnProcessResultinstead ofProcessState. This aligns with the PR's objective to useProcessResultfor representing process states more explicitly.
255-255: The method correctly returns the process ID and the result, ensuring that the interface remains consistent with the expected output types. Good job on maintaining consistency in the method's signature and return type.
586-587: The testswait_without_job_controlandwait_for_foreground_job_to_exiteffectively demonstrate the use ofProcessResult::exitedto assert the outcome of subshell operations. This is a good practice as it ensures that the newProcessResultenum is integrated properly into the testing framework.Also applies to: 601-602
713-713: The tests for stopper handlers in various scenarios (controlled, uncontrolled, interactive, non-interactive shells) are crucial for ensuring robust signal handling. It's important to verify that these tests cover all edge cases and that the behavior is consistent with the shell's specifications.Also applies to: 752-752, 785-785, 818-818
Verification successful
The extracted test functions from
subshell.rsandtrap.rsindicate comprehensive coverage of various scenarios involving stopper handlers. The tests cover controlled and uncontrolled subshells, interactive and non-interactive shells, and different signal handling behaviors.Key Test Functions Covering Stopper Handlers:
stopper_handlers_kept_in_uncontrolled_subshell_of_controlling_interactive_shellstopper_handlers_reset_in_controlled_subshell_of_controlling_interactive_shellstopper_handlers_not_set_in_subshell_of_non_controlling_interactive_shellstopper_handlers_not_set_in_uncontrolled_subshell_of_controlling_non_interactive_shellkeeping_stopper_handlers_ignoredno_stopper_handlers_enabled_to_keep_ignoredThese functions ensure that the behavior of stopper handlers is tested across different shell states and signal handling configurations.
Conclusion:
The tests for stopper handlers in various scenarios are well-covered and consistent with the shell's specifications.
Scripts Executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Verify the comprehensive coverage of stopper handler tests. # Test: Search for the function usage and ensure all scenarios are covered. rg --type rust $'stopper_handlers'Length of output: 2988
Script:
#!/bin/bash # Extract the definitions of test functions related to stopper handlers in subshell.rs and trap.rs # Extract test functions in subshell.rs ast-grep --lang rust --pattern 'fn $_() { $$$ }' yash-env/src/subshell.rs # Extract test functions in trap.rs ast-grep --lang rust --pattern 'fn $_() { $$$ }' yash-env/src/trap.rsLength of output: 94889
653-653: The testsigint_sigquit_ignored_in_uncontrolled_jobchecks the behavior of signal handling when SIGINT and SIGQUIT are ignored. It's important to ensure that this behavior is consistent across different job control settings.Verification successful
The gathered context confirms that the
ignore_sigint_sigquitfunction sets the signal handling for SIGINT and SIGQUIT toIgnorewhen the flag is true. This behavior is consistent across different job control settings, as seen in the subshell creation and signal handling functions.
yash-semantics/src/command/item.rs: The subshell is created withignore_sigint_sigquit(true).yash-env/src/subshell.rs: The functionignore_sigint_sigquitsets the flag, and subshells are started with this flag.yash-env/src/trap.rs: The signal handling is set toIgnorefor SIGINT and SIGQUIT when the flag is true.This confirms that the signal handling behavior is consistent across different job control settings.
Scripts Executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Verify the signal handling behavior when SIGINT and SIGQUIT are ignored. # Test: Search for the function usage and ensure it handles signals correctly under different job control settings. rg --type rust $'ignore_sigint_sigquit'Length of output: 663
Script:
#!/bin/bash # Description: Gather context around the usage of ignore_sigint_sigquit in the identified files. # Extract lines around the usage in yash-semantics/src/command/item.rs rg --context 5 --type rust 'ignore_sigint_sigquit' yash-semantics/src/command/item.rs # Extract lines around the usage in yash-env/src/subshell.rs rg --context 5 --type rust 'ignore_sigint_sigquit' yash-env/src/subshell.rs # Extract lines around the usage in yash-env/src/trap.rs rg --context 5 --type rust 'ignore_sigint_sigquit' yash-env/src/trap.rsLength of output: 3735
241-245: The handling ofProcessState::Halted(result)within the loop is crucial for determining the final process result. Ensure that the logic correctly breaks out of the loop when the process is not stopped or when job control is active. This is a sensitive part of the process management logic and should be thoroughly tested.yash-env/src/system/virtual/process.rs (6)
24-24: Added import forProcessResult.This import is necessary for the new functionality introduced in the
Processclass.
423-424: Ensure correct state transition on signal handling.The handling of signals to transition the process state to
Haltedwith appropriate results is implemented correctly.Also applies to: 774-777, 796-799
271-271: Ensure correct behavior when waking up processes.Verification successful
Ensure correct behavior when waking up processes.
The
wake_on_resumptionmethod is invoked in contexts where the process state is checked, and if it is stopped, the method is called to handle resumption. This indicates that the method is intended to handle the resumption of halted processes correctly.
yash-env/src/system/virtual.rs: Lines wherewake_on_resumptionis invoked.Scripts Executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Verify that the `wake_on_resumption` method correctly handles the waking up of processes. # Test: Search for the method usage. Expect: Correct handling of process resumption. rg --type rust $'wake_on_resumption'Length of output: 466
Script:
#!/bin/bash # Retrieve the implementation of the `wake_on_resumption` method. ast-grep --lang rust --pattern 'fn wake_on_resumption($_, $_) { $$$ }' # Retrieve the surrounding code where `wake_on_resumption` is invoked. rg -A 5 -B 5 'wake_on_resumption' yash-env/src/system/virtual.rsLength of output: 996
817-817: Verify the transition tostoppedstate on receivingSIGTSTP.Verification successful
The function
process_raise_signal_default_stoppinginyash-env/src/system/virtual/process.rsincludes an assertion that verifies the process transitions to thestoppedstate upon receivingSIGTSTP. This confirms that the process state transition is correctly handled.
yash-env/src/system/virtual/process.rs:817:assert_eq!(process.state(), ProcessState::stopped(Signal::SIGTSTP));Scripts Executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Verify that the process correctly transitions to the `stopped` state upon receiving `SIGTSTP`. # Test: Search for the method usage. Expect: Correct state transition on `SIGTSTP`. rg --type rust $'raise_signal'Length of output: 4281
Script:
#!/bin/bash # Description: Verify that the process correctly transitions to the `stopped` state upon receiving `SIGTSTP`. # Search for the implementation of `process_raise_signal_default_stopping` to verify state transition. ast-grep --lang rust --pattern 'fn process_raise_signal_default_stopping() { $$$ }'Length of output: 1232
824-824: Ensure correct behavior when continuing fromstoppedstate.
858-858: Check for correct signal handling when ignored and blocked.Verification successful
To verify the correct handling of signals when they are ignored and blocked, we need to inspect the implementation of the
raise_signalfunction and check for any specific handling logic for these scenarios. Additionally, we should look for related test cases.
To verify the correct handling of signals when they are ignored and blocked, we need to review the implementation of the
raise_signalfunction and the related functionsprocess_raise_signal_ignored,process_raise_signal_ignored_and_blocked_sigcont, andprocess_raise_signal_blocked.
The
raise_signalfunction and the related functions for handling ignored and blocked signals have been reviewed. The implementation shows that signals are correctly handled when they are ignored or blocked.
- The
raise_signalfunction inyash-semantics/src/trap/signal.rsdelegates the signal handling to the process.- The
process_raise_signal_ignoredfunction ensures that ignored signals are not processed.- The
process_raise_signal_ignored_and_blocked_sigcontfunction ensures that signals that are both ignored and blocked are not delivered.- The
process_raise_signal_blockedfunction ensures that blocked signals are not delivered.These implementations confirm that the process correctly handles signals when they are ignored and blocked.
Scripts Executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Verify that the process correctly handles signals when they are ignored and blocked. # Test: Search for the method usage. Expect: Correct handling of ignored and blocked signals. rg --type rust $'raise_signal'Length of output: 4281
Script:
#!/bin/bash # Search for the implementation of the `raise_signal` function in the codebase. ast-grep --lang rust --pattern 'fn raise_signal($_, $_) { $$$ }' # Search for test cases or handling logic related to ignored and blocked signals. rg --type rust 'raise_signal' | grep -E 'ignored|blocked'Length of output: 998
Script:
#!/bin/bash # Display the implementation of the `raise_signal` function in `yash-semantics/src/trap/signal.rs`. sed -n '132,140p' yash-semantics/src/trap/signal.rs # Display the implementation of the `process_raise_signal_ignored` function in `yash-env/src/system/virtual/process.rs`. sed -n '/fn process_raise_signal_ignored/,/}/p' yash-env/src/system/virtual/process.rs # Display the implementation of the `process_raise_signal_ignored_and_blocked_sigcont` function in `yash-env/src/system/virtual/process.rs`. sed -n '/fn process_raise_signal_ignored_and_blocked_sigcont/,/}/p' yash-env/src/system/virtual/process.rs # Display the implementation of the `process_raise_signal_blocked` function in `yash-env/src/system/virtual/process.rs`. sed -n '/fn process_raise_signal_blocked/,/}/p' yash-env/src/system/virtual/process.rsLength of output: 2796
yash-env/src/job.rs (14)
121-153: IntroducedProcessResultenum to encapsulate process states.This change aligns with the PR's objective to redefine process handling and makes the code more expressive by clearly distinguishing between different process results.
140-152: Added utility methodsexitedandis_stoppedtoProcessResult.These methods enhance the usability of the
ProcessResultenum by providing convenient ways to create and check specific process states.
155-165: Implemented conversion fromProcessResulttoExitStatus.This implementation is crucial for integrating
ProcessResultwith existing code that expectsExitStatus. It ensures that the system can continue to function correctly with the new enum.
167-211: RefactoredProcessStateto useProcessResult.This refactoring simplifies the representation of process states by leveraging the new
ProcessResultenum. It helps in maintaining a clear separation between running states and terminal states of processes.
226-237: Enhancedfrom_wait_statusmethod to handle newProcessStatestructure.The updates to this method are necessary to accommodate the changes in
ProcessState. It correctly translatesWaitStatusinto the newProcessState, ensuring that system calls continue to integrate smoothly with the job management system.
243-248: Implemented conversion fromProcessResulttoProcessState.This conversion is essential for cases where a
ProcessResultneeds to be treated as aProcessState, providing flexibility in handling different process outcomes.
263-263: Correct handling ofProcessStatetoExitStatusconversion.The implementation correctly handles the conversion, particularly the case where a process is still running, which should not have an exit status.
331-334: Updatedis_suspendedmethod to use the newis_stoppedfromProcessState.This update ensures that the method's implementation remains consistent with the new definitions of process states, maintaining the integrity of job control logic.
Line range hint
1060-1072: Updated job status handling in tests to reflect newProcessStatestructure.The changes in the test cases are aligned with the modifications in the job management system, ensuring that the tests remain relevant and effective.
1107-1111: Handled unmatched expected state in job status update correctly.This test case verifies the robustness of the job status update logic, particularly when the actual state does not match the expected state, which is critical for ensuring the reliability of state management.
Line range hint
1152-1204: Tests for job control logic considering newProcessStatedefinitions.These tests are crucial for verifying that the job control logic correctly handles various scenarios with suspended and running jobs, especially with the new state definitions.
Line range hint
1223-1273: Comprehensive testing of job removal logic under different conditions.These tests ensure that the job list correctly handles the removal of current and previous jobs, which is vital for the stability of job management in the shell.
Line range hint
1305-1345: Thorough testing of job suspension and resumption logic.The tests effectively validate the behavior of the job list when jobs are suspended and resumed, which is essential for the correct functioning of job control features in the shell.
Line range hint
1368-1542: Validated job selection logic in various scenarios.The tests confirm that the job list correctly updates the current and previous jobs based on their states, ensuring that the shell's job control behaves as expected under different conditions.
yash-env/src/system/virtual.rs (3)
2526-2526: Ensure consistency in handling exited state.This script helps verify that the exited state is handled consistently across different parts of the codebase. Consistency is key to avoiding bugs and making the code easier to understand and maintain.
Verification successful
The context extracted from the codebase shows that
ProcessState::exitedis consistently used in assertions and state assignments across various modules. The handling appears uniform, with no evident inconsistencies in the way the exited state is managed.
- Instances of
ProcessState::exitedare used in assertions to verify the state of processes.- The exited state is assigned to job states in a consistent manner across different modules.
Given this consistency, the review comment's concern about ensuring uniform handling of the exited state is addressed.
Scripts Executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Verify consistency in handling the exited state across different modules. # Test: Search for inconsistencies in handling ProcessState::exited. rg --type rust 'ProcessState::exited' | rg -v 'consistent handling'Length of output: 3270
Script:
#!/bin/bash # Description: Extract context around the usage of ProcessState::exited to verify consistency. # Extract 5 lines before and after each match to understand the context. rg --type rust 'ProcessState::exited' -C 5Length of output: 23963
1238-1245: Ensure proper handling of halted state in asynchronous operations.This script searches for all asynchronous functions and checks if they handle the
ProcessState::Haltedstate. This is crucial to ensure that the system behaves correctly under all conditions.
2488-2488: Handle edge cases in process state transitions.This script checks if the transition from stopped to resumed state is handled correctly across the codebase. It's important to ensure that processes are resumed correctly without any issues.
| ProcessState::Halted(result) => { | ||
| if !result.is_stopped() { | ||
| self.close_fds() | ||
| } | ||
| } |
There was a problem hiding this comment.
Handle process state changes correctly when halted.
The logic to close file descriptors when the process is not stopped (i.e., exited or signaled) is crucial for resource management. Ensure this behavior is consistent across the codebase.
| ProcessState::Halted(result) => { | ||
| if result.is_stopped() { | ||
| waker.set(Some(cx.waker().clone())); | ||
| process.wake_on_resumption(Rc::downgrade(&waker)); | ||
| } |
There was a problem hiding this comment.
Refactor handling of halted process state to improve clarity.
- ProcessState::Halted(result) => {
- if result.is_stopped() {
- waker.set(Some(cx.waker().clone()));
- process.wake_on_resumption(Rc::downgrade(&waker));
- }
- Poll::Pending
- }
+ ProcessState::Halted(result) if result.is_stopped() => {
+ waker.set(Some(cx.waker().clone()));
+ process.wake_on_resumption(Rc::downgrade(&waker));
+ Poll::Pending
+ }
+ ProcessState::Halted(_) => Poll::Ready(())This change simplifies the match arm by using a guard for the is_stopped() condition, making the code easier to read and understand. It also explicitly handles the case where the process is halted but not stopped.
Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation.
| ProcessState::Halted(result) => { | |
| if result.is_stopped() { | |
| waker.set(Some(cx.waker().clone())); | |
| process.wake_on_resumption(Rc::downgrade(&waker)); | |
| } | |
| ProcessState::Halted(result) if result.is_stopped() => { | |
| waker.set(Some(cx.waker().clone())); | |
| process.wake_on_resumption(Rc::downgrade(&waker)); | |
| Poll::Pending | |
| } | |
| ProcessState::Halted(_) => Poll::Ready(()) |
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Thanks, but we need to return Poll::Pending for all Halted cases in this function.
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@magicant, I understand the requirement to treat all Halted cases uniformly in this function. Here's the revised code that returns Poll::Pending for any Halted state, ensuring the function behaves consistently across all such conditions:
match process.state {
ProcessState::Running => Poll::Ready(()),
ProcessState::Halted(_) => {
waker.set(Some(cx.waker().clone()));
process.wake_on_resumption(Rc::downgrade(&waker));
Poll::Pending
}
}This adjustment ensures that the function will always wait for a resumption signal, regardless of the specific halted condition.
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Still, we should perform waker.set(Some(cx.waker().clone())); and process.wake_on_resumption(Rc::downgrade(&waker)); only if the process state is stopped.
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@magicant, thank you for your detailed feedback. Based on your latest input, here's the refined code snippet that ensures waker.set(Some(cx.waker().clone())); and process.wake_on_resumption(Rc::downgrade(&waker)); are executed only when the process state is specifically stopped:
match process.state {
ProcessState::Running => Poll::Ready(()),
ProcessState::Halted(result) if result.is_stopped() => {
waker.set(Some(cx.waker().clone()));
process.wake_on_resumption(Rc::downgrade(&waker));
Poll::Pending
},
ProcessState::Halted(_) => Poll::Pending,
}This modification ensures that the wake-up procedures are only triggered for a stopped state, while other halted conditions will simply return Poll::Pending without further action.
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Right, but I'm not sure if the new code is really clearer than before... They look so similar to me. 🤔
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@magicant, I appreciate your perspective on the similarity between the original and revised code snippets. The intention behind the revised version was to enhance readability by explicitly using a guard clause (if result.is_stopped()) in the match arm. This approach can help in quickly identifying the conditions under which specific blocks of code will execute, which is beneficial for maintainability and clarity as the codebase evolves.
However, the effectiveness of such changes can vary based on personal or team preferences and the specific context of the project. If you feel that the original version aligns better with the project's style or is equally clear, it might be best to retain that. It's important that the code not only follows best practices but also fits well with the existing codebase and the team's standards.
Please let me know if you'd like to explore any other modifications or if there's anything else I can assist you with!
This refactoring project introduces the
ProcessResultenum, which is represents the state of a process but theRunningstate. TheProcessStateenum is redefined in terms ofProcessResult. This allows more fine-grained type checking on conversion from those enum toExitStatus.ProcessResultProcessStatein terms ofProcessResultProcessResultfromSubshell::start_and_wait